/* Modern Card-Based Category Layout */

/* Grid Container */
.category-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px 0;
    width: 100%;
    box-sizing: border-box;
}

/* Card Style */
.category-card {
    background: var(--card-bg, #fff);
    /* 使用主题背景变量 */
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    border-left: 5px solid var(--category-color, #999);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Header Section */
.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(100, 100, 100, 0.1);
}

.card-icon {
    font-size: 28px;
    margin-right: 12px;
    filter: grayscale(0.2);
    transition: filter 0.3s;
}

.category-card:hover .card-icon {
    filter: grayscale(0);
    transform: scale(1.1);
}

.card-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--font-color);
    text-decoration: none;
    flex-grow: 1;
    letter-spacing: 0.5px;
}

.card-title:hover {
    color: var(--category-color);
}

.card-count {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    color: #888;
    font-weight: 500;
}

/* Sub-categories Tag Cloud */
.subcategory-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
    margin-top: auto;
    /* Push to bottom if content varies */
}

.subcategory-item {
    display: block;
}

.subcategory-link {
    display: inline-block;
    padding: 5px 10px;
    background: rgba(128, 128, 128, 0.08);
    border-radius: 6px;
    font-size: 13px;
    color: var(--font-color);
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.subcategory-link:hover {
    background: #fff;
    color: var(--category-color);
    border-color: var(--category-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

/* Mobile Responsiveness */
@media screen and (max-width: 768px) {
    .category-container {
        grid-template-columns: 1fr;
        /* Single column on mobile */
    }
}